<%= div_for picture do %>
	<div class="picture_show">
		<%= link_to thumb_for(picture, 500),
		download_document_path(picture),
		:id => dom_id(picture) + "_a",
		:type => picture.type, 
		:title => picture.file_file_name,
		:path => document_path(picture)
		%>
	</div>
<% end %>